IP Library › Granted Patent US 12,268,466
Granted Patent B2
US 12,268,466 · App. 16/421,311 · Granted Apr 8, 2025

System and method for assessment of neuro-inflammation using magnetic resonance imaging (MRI)

Inventor: John-Paul Jaewoon Yu (Madison, WI)
Assignee: WISCONSIN ALUMNI RESEARCH FOUNDATION
A61B5/0042A61B5/055G01R33/5608G01R33/56341A61B2576/026
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Quick Facts
Patent No.
US 12,268,466
App. No.
16/421,311
Granted
Apr 8, 2025
Kind
B2
Abstract

A system and method are provided for non-invasively assessing neuro-inflammation in a subject. The method includes acquiring neurite orientation dispersion and density imaging (NODDI) data of the subject and processing the NODDI data to determine an orientation dispersion index (ODI) component of the NODDI data. The method also includes assessing the ODI component against one of a reference of neuro-inflammation or a prior ODI component acquired from the subject to determine one of an acute assessment or a chronic assessment of neuro-inflammation in the subject. The method further includes generating a report indicating the one of an acute assessment or a chronic assessment of neuro-inflammation in the subject.

Claims (26)

1. A magnetic resonance imaging (MRI) system comprising:

a magnet system configured to generate a polarizing magnetic field about at least a portion of a subject arranged in the MRI system;

a plurality of gradient coils configured to apply a gradient field to the polarizing magnetic field;

a radio frequency (RF) system configured to apply an excitation field to the subject and acquire MR image data from the subject;

a computer system programmed to:

control the plurality of gradient coils and the RF system to acquire neurite orientation dispersion and density imaging (NODDI) data from the subject;

process the NODDI data to determine an orientation dispersion index (ODI) component of the NODDI data;

assess the ODI component against one of a reference of neuro-inflammation or a prior ODI component acquired from the subject to distinguish an acute neuro-inflammation in the subject from chronic neuro-inflammation in the subject and quantify the acute neuro-inflammation or the chronic neuro-inflammation; and

generate a report indicating the quantified acute neuro-inflammation or chronic neuro-inflammation in the subject.

2. The system of claim 1 wherein the reference of neuro-inflammation relates changes in ODI to changes in extracellular compartments in brain tissue.

3. The system of claim 2 wherein the changes in extracellular compartments include microglial cell density and morphology that are associated with neuro-inflammation.

4. The system of claim 1 wherein assessing the ODI component includes determining alterations in microglia morphology.

5. The system of claim 1 wherein assessing the reference of neuro-inflammation includes a model of acute inflammation that increases measures of the ODI component with an increase in anisotropic diffusion in extracellular compartments.

6. The system of claim 1 wherein the computer system is further configured to generate an image of the subject and generate the report to include the image of the subject to illustrate a location of neuro-inflammation in the subject on the image.

7. The system of claim 1 wherein the report includes an imaging biomarker map indicative of the quantified neuro-inflammation.

8. A computer readable storage medium having instructions stored thereon that, when executed by a computer system, causes the computer system to perform a process for non-invasively assessing neuro-inflammation in a subject comprising:

acquiring, using a computer system, neurite orientation dispersion and density imaging (NODDI) data of the subject;

processing, using the computer system, the NODDI data to determine an orientation dispersion index (ODI) component of the NODDI data;

assessing, using the computer system, the ODI component against one of a reference of neuro-inflammation or a prior ODI component acquired from the subject to distinguish an acute neuro-inflammation in the subject from chronic neuro-inflammation in the subject and quantify the acute neuro-inflammation or the chronic neuro-inflammation; and

generating, using the computer system, a report indicating the quantified acute neuro-inflammation or the quantified chronic neuro-inflammation in the subject.

9. The computer readable storage medium of claim 8 wherein the reference of neuro-inflammation relates changes in ODI to changes in extracellular compartments in brain tissue.

10. The computer readable storage medium of claim 9 wherein the changes in extracellular compartments include microglial cell density and morphology that are associated with neuro-inflammation.

11. The computer readable storage medium of claim 8 wherein assessing the ODI component includes determining alterations in microglia morphology.

12. The computer readable storage medium of claim 8 wherein assessing the reference of neuro-inflammation includes a model of acute inflammation that increases measures of the ODI component with an increase in anisotropic diffusion in extracellular compartments.

13. The computer readable storage medium of claim 8 wherein the report includes an image of the subject.

14. The computer readable storage medium of claim 8 wherein the report includes an imaging biomarker map indicative of the quantified neuro-inflammation.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 30, 2019
From: YU, JOHN-PAUL
To: WISCONSIN ALUMNI RESEARCH FOUNDATION
Reel/Frame 049319/0463 →
Continuity (2)
Provisional Application 62677295 · May 29, 2018
Related Publication 20190365229A1 · Dec 5, 2019
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